Replaced buttons, and now the 3D screen turns on, but stays black.
I removed the motherboard to get to the D-pad and to do so released the 3D screen ribbon cables, I put them back and ensured they are clean, tight and secure, flaps down. (twice- I went back and tried again after realizing the problem the first time.) and the 3D screen is turning on with the rest of the system (everything else is fine) but stays black. and tips on what I should do?